Global Patent Index - EP 1873430 A3

EP 1873430 A3 20081112 - Reversed actuator with minimal leak potential

Title (en)

Reversed actuator with minimal leak potential

Title (de)

Umgekehrter Aktuator mit minimalem Leckpotential

Title (fr)

Actionneur inversé avec un potentiel de fuite minimum

Publication

EP 1873430 A3 20081112 (EN)

Application

EP 07111284 A 20070628

Priority

US 47979406 A 20060630

Abstract (en)

[origin: EP1873430A2] An apparatus is provided for a valve actuator assembly (16) comprising an actuator housing (32), a piston (34), and a spring (36). The piston (34) is disposed within the actuator housing (32). The piston (34) is configured to couple to a valve element (14), and includes an inner cylindrical section (46) and an outer cylindrical section (48). The outer cylindrical section (48) of the piston (34) is spaced apart from the inner cylindrical section (46) to define a recess (50). The piston (34) is further configured to move within the actuator housing (32) in a first direction and a second direction, to thereby move the valve element (14) toward a first position and a second position, respectively. The spring (36) is disposed within the actuator housing (32), and is configured to supply a bias force that urges the piston (34) to move in the first direction. The spring (36) is at least partially disposed within the recess (50), and at least partially surrounding the inner cylindrical section (46).

IPC 8 full level

F16K 1/22 (2006.01); F16K 31/163 (2006.01)

CPC (source: EP US)

F16K 1/221 (2013.01 - EP US); F16K 31/1635 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1873430 A2 20080102; EP 1873430 A3 20081112; US 2008001108 A1 20080103; US 7731152 B2 20100608

DOCDB simple family (application)

EP 07111284 A 20070628; US 47979406 A 20060630